Dec 18 05:28:48.341 INFO checking Shacham6/serde_training_rust against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 05:28:48.341 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/Shacham6/serde_training_rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 05:28:48.794 INFO [stdout] 2c9813625eef5a72a2097f8e7d4b66244b849217bc5571257c6b1db7eaa05196
Dec 18 05:28:48.798 INFO running `"docker" "start" "-a" "2c9813625eef5a72a2097f8e7d4b66244b849217bc5571257c6b1db7eaa05196"`
Dec 18 05:28:50.380 INFO [stderr]     Checking serde_yaml v0.7.1
Dec 18 05:28:51.664 INFO [stderr]     Checking serde_fun v0.1.0 (/opt/crater/workdir)
Dec 18 05:28:52.024 INFO [stderr] warning: unused import: `std::fs::File`
Dec 18 05:28:52.024 INFO [stderr]  --> src/main.rs:8:5
Dec 18 05:28:52.024 INFO [stderr]   |
Dec 18 05:28:52.024 INFO [stderr] 8 | use std::fs::File;
Dec 18 05:28:52.024 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 18 05:28:52.024 INFO [stderr]   |
Dec 18 05:28:52.024 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 05:28:52.024 INFO [stderr] 
Dec 18 05:28:52.024 INFO [stderr] warning: unused import: `std::io::Read`
Dec 18 05:28:52.024 INFO [stderr]  --> src/main.rs:9:5
Dec 18 05:28:52.024 INFO [stderr]   |
Dec 18 05:28:52.024 INFO [stderr] 9 | use std::io::Read;
Dec 18 05:28:52.024 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 18 05:28:52.024 INFO [stderr] 
Dec 18 05:28:52.024 INFO [stderr] warning: unused import: `std::vec::Vec`
Dec 18 05:28:52.024 INFO [stderr]   --> src/main.rs:10:5
Dec 18 05:28:52.024 INFO [stderr]    |
Dec 18 05:28:52.024 INFO [stderr] 10 | use std::vec::Vec;
Dec 18 05:28:52.024 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 18 05:28:52.024 INFO [stderr] 
Dec 18 05:28:52.024 INFO [stderr] warning: unused imports: `DeserializeOwned`, `Deserialize`
Dec 18 05:28:52.024 INFO [stderr]   --> src/main.rs:13:17
Dec 18 05:28:52.024 INFO [stderr]    |
Dec 18 05:28:52.024 INFO [stderr] 13 | use serde::de::{Deserialize, DeserializeOwned};
Dec 18 05:28:52.024 INFO [stderr]    |                 ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
Dec 18 05:28:52.024 INFO [stderr] 
Dec 18 05:28:52.024 INFO [stderr] warning: unused import: `serde_yaml::from_str as yaml_from_str`
Dec 18 05:28:52.024 INFO [stderr]   --> src/main.rs:14:5
Dec 18 05:28:52.024 INFO [stderr]    |
Dec 18 05:28:52.024 INFO [stderr] 14 | use serde_yaml::from_str as yaml_from_str;
Dec 18 05:28:52.024 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:28:52.024 INFO [stderr] 
Dec 18 05:28:52.024 INFO [stderr] warning: unused import: `serde`
Dec 18 05:28:52.024 INFO [stderr]  --> src/examples/json_example.rs:1:5
Dec 18 05:28:52.024 INFO [stderr]   |
Dec 18 05:28:52.024 INFO [stderr] 1 | use serde;
Dec 18 05:28:52.024 INFO [stderr]   |     ^^^^^
Dec 18 05:28:52.024 INFO [stderr] 
Dec 18 05:28:52.024 INFO [stderr] warning: unused import: `serde_derive`
Dec 18 05:28:52.024 INFO [stderr]  --> src/examples/json_example.rs:3:5
Dec 18 05:28:52.024 INFO [stderr]   |
Dec 18 05:28:52.024 INFO [stderr] 3 | use serde_derive;
Dec 18 05:28:52.024 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 18 05:28:52.024 INFO [stderr] 
Dec 18 05:28:52.025 INFO [stderr] warning: unused import: `std::fs::File`
Dec 18 05:28:52.025 INFO [stderr]  --> src/examples/json_example.rs:5:5
Dec 18 05:28:52.025 INFO [stderr]   |
Dec 18 05:28:52.025 INFO [stderr] 5 | use std::fs::File;
Dec 18 05:28:52.025 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 18 05:28:52.025 INFO [stderr] 
Dec 18 05:28:52.025 INFO [stderr] warning: unused import: `std::io::Read`
Dec 18 05:28:52.025 INFO [stderr]  --> src/examples/json_example.rs:6:5
Dec 18 05:28:52.025 INFO [stderr]   |
Dec 18 05:28:52.025 INFO [stderr] 6 | use std::io::Read;
Dec 18 05:28:52.025 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 18 05:28:52.025 INFO [stderr] 
Dec 18 05:28:52.025 INFO [stderr] warning: unused import: `std::env::args`
Dec 18 05:28:52.025 INFO [stderr]  --> src/examples/json_example.rs:8:5
Dec 18 05:28:52.025 INFO [stderr]   |
Dec 18 05:28:52.025 INFO [stderr] 8 | use std::env::args;
Dec 18 05:28:52.025 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 18 05:28:52.025 INFO [stderr] 
Dec 18 05:28:52.025 INFO [stderr] warning: unused import: `std::io::Error`
Dec 18 05:28:52.025 INFO [stderr]  --> src/examples/json_example.rs:9:5
Dec 18 05:28:52.025 INFO [stderr]   |
Dec 18 05:28:52.025 INFO [stderr] 9 | use std::io::Error;
Dec 18 05:28:52.025 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 18 05:28:52.025 INFO [stderr] 
Dec 18 05:28:52.025 INFO [stderr] warning: unused imports: `DeserializeOwned`, `Deserialize`
Dec 18 05:28:52.025 INFO [stderr]   --> src/examples/json_example.rs:12:17
Dec 18 05:28:52.025 INFO [stderr]    |
Dec 18 05:28:52.025 INFO [stderr] 12 | use serde::de::{Deserialize, DeserializeOwned};
Dec 18 05:28:52.025 INFO [stderr]    |                 ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
Dec 18 05:28:52.025 INFO [stderr] 
Dec 18 05:28:52.025 INFO [stderr] warning: unused import: `serde_yaml::from_str as yaml_from_str`
Dec 18 05:28:52.025 INFO [stderr]   --> src/examples/json_example.rs:13:5
Dec 18 05:28:52.025 INFO [stderr]    |
Dec 18 05:28:52.025 INFO [stderr] 13 | use serde_yaml::from_str as yaml_from_str;
Dec 18 05:28:52.025 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:28:52.025 INFO [stderr] 
Dec 18 05:28:52.025 INFO [stderr] warning: unused import: `serde`
Dec 18 05:28:52.025 INFO [stderr]  --> src/examples/yaml_example.rs:1:5
Dec 18 05:28:52.025 INFO [stderr]   |
Dec 18 05:28:52.025 INFO [stderr] 1 | use serde;
Dec 18 05:28:52.025 INFO [stderr]   |     ^^^^^
Dec 18 05:28:52.025 INFO [stderr] 
Dec 18 05:28:52.025 INFO [stderr] warning: unused import: `serde_derive`
Dec 18 05:28:52.025 INFO [stderr]  --> src/examples/yaml_example.rs:2:5
Dec 18 05:28:52.025 INFO [stderr]   |
Dec 18 05:28:52.025 INFO [stderr] 2 | use serde_derive;
Dec 18 05:28:52.025 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 18 05:28:52.025 INFO [stderr] 
Dec 18 05:28:52.025 INFO [stderr] warning: unused import: `std::env::args`
Dec 18 05:28:52.025 INFO [stderr]  --> src/examples/yaml_example.rs:5:5
Dec 18 05:28:52.025 INFO [stderr]   |
Dec 18 05:28:52.025 INFO [stderr] 5 | use std::env::args;
Dec 18 05:28:52.025 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 18 05:28:52.025 INFO [stderr] 
Dec 18 05:28:52.032 INFO [stderr] warning: unused import: `std::fs::File`
Dec 18 05:28:52.033 INFO [stderr]  --> src/main.rs:8:5
Dec 18 05:28:52.033 INFO [stderr]   |
Dec 18 05:28:52.033 INFO [stderr] 8 | use std::fs::File;
Dec 18 05:28:52.033 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 18 05:28:52.033 INFO [stderr]   |
Dec 18 05:28:52.033 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 05:28:52.033 INFO [stderr] 
Dec 18 05:28:52.033 INFO [stderr] warning: unused import: `std::io::Read`
Dec 18 05:28:52.033 INFO [stderr]  --> src/main.rs:9:5
Dec 18 05:28:52.033 INFO [stderr]   |
Dec 18 05:28:52.033 INFO [stderr] 9 | use std::io::Read;
Dec 18 05:28:52.033 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 18 05:28:52.033 INFO [stderr] 
Dec 18 05:28:52.033 INFO [stderr] warning: unused import: `std::vec::Vec`
Dec 18 05:28:52.033 INFO [stderr]   --> src/main.rs:10:5
Dec 18 05:28:52.033 INFO [stderr]    |
Dec 18 05:28:52.033 INFO [stderr] 10 | use std::vec::Vec;
Dec 18 05:28:52.033 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 18 05:28:52.033 INFO [stderr] 
Dec 18 05:28:52.033 INFO [stderr] warning: unused imports: `DeserializeOwned`, `Deserialize`
Dec 18 05:28:52.033 INFO [stderr]   --> src/main.rs:13:17
Dec 18 05:28:52.033 INFO [stderr]    |
Dec 18 05:28:52.033 INFO [stderr] 13 | use serde::de::{Deserialize, DeserializeOwned};
Dec 18 05:28:52.033 INFO [stderr]    |                 ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
Dec 18 05:28:52.033 INFO [stderr] 
Dec 18 05:28:52.033 INFO [stderr] warning: unused import: `serde_yaml::from_str as yaml_from_str`
Dec 18 05:28:52.033 INFO [stderr]   --> src/main.rs:14:5
Dec 18 05:28:52.033 INFO [stderr]    |
Dec 18 05:28:52.033 INFO [stderr] 14 | use serde_yaml::from_str as yaml_from_str;
Dec 18 05:28:52.033 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:28:52.033 INFO [stderr] 
Dec 18 05:28:52.033 INFO [stderr] warning: unused import: `serde`
Dec 18 05:28:52.033 INFO [stderr]  --> src/examples/json_example.rs:1:5
Dec 18 05:28:52.033 INFO [stderr]   |
Dec 18 05:28:52.033 INFO [stderr] 1 | use serde;
Dec 18 05:28:52.033 INFO [stderr]   |     ^^^^^
Dec 18 05:28:52.033 INFO [stderr] 
Dec 18 05:28:52.033 INFO [stderr] warning: unused import: `serde_derive`
Dec 18 05:28:52.033 INFO [stderr]  --> src/examples/json_example.rs:3:5
Dec 18 05:28:52.033 INFO [stderr]   |
Dec 18 05:28:52.033 INFO [stderr] 3 | use serde_derive;
Dec 18 05:28:52.033 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 18 05:28:52.033 INFO [stderr] 
Dec 18 05:28:52.033 INFO [stderr] warning: unused import: `std::fs::File`
Dec 18 05:28:52.033 INFO [stderr]  --> src/examples/json_example.rs:5:5
Dec 18 05:28:52.033 INFO [stderr]   |
Dec 18 05:28:52.033 INFO [stderr] 5 | use std::fs::File;
Dec 18 05:28:52.033 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 18 05:28:52.033 INFO [stderr] 
Dec 18 05:28:52.033 INFO [stderr] warning: unused import: `std::io::Read`
Dec 18 05:28:52.033 INFO [stderr]  --> src/examples/json_example.rs:6:5
Dec 18 05:28:52.033 INFO [stderr]   |
Dec 18 05:28:52.033 INFO [stderr] 6 | use std::io::Read;
Dec 18 05:28:52.033 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 18 05:28:52.033 INFO [stderr] 
Dec 18 05:28:52.033 INFO [stderr] warning: unused import: `std::env::args`
Dec 18 05:28:52.033 INFO [stderr]  --> src/examples/json_example.rs:8:5
Dec 18 05:28:52.033 INFO [stderr]   |
Dec 18 05:28:52.033 INFO [stderr] 8 | use std::env::args;
Dec 18 05:28:52.033 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 18 05:28:52.033 INFO [stderr] 
Dec 18 05:28:52.033 INFO [stderr] warning: unused import: `std::io::Error`
Dec 18 05:28:52.033 INFO [stderr]  --> src/examples/json_example.rs:9:5
Dec 18 05:28:52.033 INFO [stderr]   |
Dec 18 05:28:52.033 INFO [stderr] 9 | use std::io::Error;
Dec 18 05:28:52.033 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 18 05:28:52.033 INFO [stderr] 
Dec 18 05:28:52.033 INFO [stderr] warning: unused imports: `DeserializeOwned`, `Deserialize`
Dec 18 05:28:52.033 INFO [stderr]   --> src/examples/json_example.rs:12:17
Dec 18 05:28:52.033 INFO [stderr]    |
Dec 18 05:28:52.033 INFO [stderr] 12 | use serde::de::{Deserialize, DeserializeOwned};
Dec 18 05:28:52.033 INFO [stderr]    |                 ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
Dec 18 05:28:52.033 INFO [stderr] 
Dec 18 05:28:52.033 INFO [stderr] warning: unused import: `serde_yaml::from_str as yaml_from_str`
Dec 18 05:28:52.033 INFO [stderr]   --> src/examples/json_example.rs:13:5
Dec 18 05:28:52.033 INFO [stderr]    |
Dec 18 05:28:52.033 INFO [stderr] 13 | use serde_yaml::from_str as yaml_from_str;
Dec 18 05:28:52.033 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:28:52.033 INFO [stderr] 
Dec 18 05:28:52.033 INFO [stderr] warning: unused import: `serde`
Dec 18 05:28:52.033 INFO [stderr]  --> src/examples/yaml_example.rs:1:5
Dec 18 05:28:52.033 INFO [stderr]   |
Dec 18 05:28:52.033 INFO [stderr] 1 | use serde;
Dec 18 05:28:52.033 INFO [stderr]   |     ^^^^^
Dec 18 05:28:52.033 INFO [stderr] 
Dec 18 05:28:52.033 INFO [stderr] warning: unused import: `serde_derive`
Dec 18 05:28:52.034 INFO [stderr]  --> src/examples/yaml_example.rs:2:5
Dec 18 05:28:52.034 INFO [stderr]   |
Dec 18 05:28:52.034 INFO [stderr] 2 | use serde_derive;
Dec 18 05:28:52.034 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 18 05:28:52.034 INFO [stderr] 
Dec 18 05:28:52.034 INFO [stderr] warning: unused import: `std::env::args`
Dec 18 05:28:52.034 INFO [stderr]  --> src/examples/yaml_example.rs:5:5
Dec 18 05:28:52.034 INFO [stderr]   |
Dec 18 05:28:52.034 INFO [stderr] 5 | use std::env::args;
Dec 18 05:28:52.034 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 18 05:28:52.034 INFO [stderr] 
Dec 18 05:28:52.348 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 05:28:52.348 INFO [stderr]   --> src/examples/json_example.rs:18:5
Dec 18 05:28:52.348 INFO [stderr]    |
Dec 18 05:28:52.348 INFO [stderr] 18 |     read_content_of_file_to_string(filepath.as_str(), &mut string);
Dec 18 05:28:52.348 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:28:52.348 INFO [stderr]    |
Dec 18 05:28:52.348 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 05:28:52.348 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 05:28:52.348 INFO [stderr] 
Dec 18 05:28:52.572 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 05:28:52.572 INFO [stderr]   --> src/examples/json_example.rs:18:5
Dec 18 05:28:52.572 INFO [stderr]    |
Dec 18 05:28:52.572 INFO [stderr] 18 |     read_content_of_file_to_string(filepath.as_str(), &mut string);
Dec 18 05:28:52.572 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:28:52.572 INFO [stderr]    |
Dec 18 05:28:52.572 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 05:28:52.572 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 05:28:52.572 INFO [stderr] 
Dec 18 05:28:52.612 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.30s
Dec 18 05:28:53.230 INFO running `"docker" "inspect" "2c9813625eef5a72a2097f8e7d4b66244b849217bc5571257c6b1db7eaa05196"`
Dec 18 05:28:53.543 INFO running `"docker" "rm" "-f" "2c9813625eef5a72a2097f8e7d4b66244b849217bc5571257c6b1db7eaa05196"`
Dec 18 05:28:53.852 INFO [stdout] 2c9813625eef5a72a2097f8e7d4b66244b849217bc5571257c6b1db7eaa05196